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Method and device for determining pumping efficiency sensitive factors of oil pumping unit well

A technique for pumping wells and determination methods, applied in special data processing applications, instruments, electrical digital data processing, etc.

Pending Publication Date: 2018-11-23
PETROCHINA CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Although the above methods provide some basis for improving the pumping efficiency of pumping wells, the actual conditions of the mines vary greatly, and various sensitive factors affecting the pumping efficiency also have different sensitivities for different mines and oil wells. Analyze some specific pump efficiency sensitive factors and propose improvement measures

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  • Method and device for determining pumping efficiency sensitive factors of oil pumping unit well
  • Method and device for determining pumping efficiency sensitive factors of oil pumping unit well
  • Method and device for determining pumping efficiency sensitive factors of oil pumping unit well

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Embodiment Construction

[0027] In order to make the purpose, technical solution and advantages of the present disclosure clearer, the implementation manners of the present disclosure will be further described in detail below in conjunction with the accompanying drawings.

[0028] figure 1 It is a flow chart of a method for determining sensitive factors of pumping efficiency of pumping wells provided by an embodiment of the present invention; the method may include the following steps S101 to S104.

[0029] Step S101: Establish a mathematical model for evaluating the sensitivity of the pump efficiency, wherein the evaluation model for the sensitivity of the pump efficiency is:

[0030] η=F(x 1 ,x 2 ,...x n ), wherein, η is the pump efficiency, x i (i=1, 2, 3...n) are the pump efficiency sensitive factors.

[0031] Step S102: Obtain the pump efficiency sensitivity of pump efficiency sensitive factors according to the pump efficiency sensitivity evaluation model, and the pump efficiency sensitivity...

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Abstract

The invention discloses a method and a device for determining pumping efficiency sensitive factors of an oil pumping unit well. A pumping efficiency sensitivity evaluation model is built, and weight coefficients of the pumping efficiency sensitive factors are obtained according to the pumping efficiency sensitivity evaluation model, so that a sequence of the sensitive factors influencing the pumping efficiency is determined. A more comprehensive method suitable for any oil well mining area and used for determining the sensitive factors influencing the pumping efficiency of the oil pumping unitwell and the influence degrees is provided; the deficiency that on-site technicians perform judgment by depending on experience, perform analysis only for the specific pumping efficiency sensitive factors and propose improvement measures is overcome; and a basis is provided for establishing measures of further improving the pumping efficiency of the oil pumping unit well.

Description

technical field [0001] The invention relates to the field of oil production engineering in the petroleum industry, in particular to a method and a device for determining sensitive factors of pumping efficiency of pumping wells. Background technique [0002] The pump efficiency of the pumping unit refers to the ratio of the actual output of the pumping unit pump to the theoretical output during the production process of the pumping well. Under normal circumstances, if the pump efficiency is 0.7 to 0.8, the pump is considered to be in good working condition. However, field practice shows that the average pump efficiency is mostly lower than 0.7, and even some oil wells have a pump efficiency lower than 0.3. The level of pump efficiency reflects the quality of the pump performance of the pumping unit and whether the selection of pumping parameters is appropriate. Therefore, how to maximize the pump efficiency has been a continuous research topic in the field of oil production...

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Application Information

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IPC IPC(8): G06F17/50
CPCG06F30/20
Inventor 苗彦平朱治国王厚兵赵立平张帅
Owner PETROCHINA CO LTD